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  3. 170057-13272

Yet Another Post About Power Conditioners!

OK, OK, so I know there are eleventy billion posts about what power conditioners are better than others. I've read them all...yes, all eleventy billion! But, I am still wondering which one I should chose.

Here's the backdrop: I have four dedicated, 20-amp outlets. There's a bunch of noise on them. So bad I can hear a local hip hop station clearly playing through my Greenwave Dirty Noise Filter w/speaker. I use an assortment of very high-end, and expensive power cables,. I use very expensive, high-end outlets. My system consists of a Mobile Fidelity Ultradeck, a PS Audio GCHP phone stage, an AudioLab 6000CDT transport, a Burson Audio 3x Reference headphone amp, and Focal Clear headphones. Everything is connected with really good interconnects, most of which are balanced. Having downsized from a much larger, much more power system, these nuggets suit my current needs just fine.

Still that AC noise. Given the size of my system, it's silly to spend mega-bucks on a regenerator, or the expensive balanced isolation transformer PCs. Based on my research, I've narrowed my choices to these in the $1500 and under price range:

Furman Elite 15 or 20 PFi (used)
AudioQuest Niagara 1200
PS Audio Dectect
Core Power Equi=Core 1000 or 1800 (no return policy, ugh)
Shunyata Hydra 8 (used)
Decware ZLC (10-12 month wait, ugh)
NuPrime Pure AC-4
Toroid BTE500E or 1000E Balanced Transformer
Tripplite ISO500 or 500HG Isolation Transformer
Torus TOT Mini Balanced Transformer

Yes, that's an extensive list, but my search reveals these are the top choices by many folks, as well as a few, little-known contenders.

If you have actual experience with any of these--and have compared them to other PCs, your opinion or recommendations would be appreciated greatly. You're welcome to suggest others, too, if you've done hands-on comparisons.


output555
twoleftears's avatar
twoleftears
5,327 posts
 
@output555  In answer to your question a while ago, yes, I other threads on the Puritan I posted how I compared them over a period of time with a substantial number of other respected units, most of them costing more, and the Puritan came out as the winner.  Once you see the way ahead clear, they are definitely worth checking out.

@phcollie They rarely appear on the secondary market because most owners hold on to them!  There are a number of stockists on the U.S.  Check out Verdant Audio who regularly posts on this site, as well as Holm Audio and Audio Archon, among others.
grannyring's avatar
grannyring
6,645 posts
 
Yes the Puritan after some two weeks of break in is very good. The video posted above by @mikelavigne had some great info. Thanks. It did mention the Puritan, but unfortunately they said some things about the Puritan grounding that is misleading at best. I use a second grounding rod with the needed Puritan Ground Master making the use of a second grounding rod, separate from the home, completely safe. No lightning issues etc…. Wonderful additional sound quality improvement with the Ground Master unit. 
output555 OP
128 posts
 
To: twoleftears and grannyring: The Puritan products do seem intriguing. Certainly not inexpensive, and hard to find in the US. Buttugly, too, but it’s only a PC and will sit on the floor, so not a big deal. You might be interested in this post by Audio Science Review. I’ve yet to see him admit a PC actually does what its makers claim it does, the Puritan PSM 156 being no exception. Although I am believer in science, when it comes to audio, I always trust my ears, regardless. So, his analyzer may say one thing, but we may hear something different.

https://www.audiosciencereview.com/forum/index.php?threads/puritan-audio-psm156-review-ac-filter.261...
mikelavigne
2,243 posts
 
’audio science review’ occupies an alternate universe.

best kept at arm’s length, possibly wearing oven gloves.

YMMV

see the first paragraph of my post on the Midfi-Hifi thread.....

https://forum.audiogon.com/discussions/hifi-vs-midfi
4krowme's avatar
4krowme
542 posts
 
Since what you are asking about is the experience that we posters have with the list given, I will offer this. I liked the idea of the Tripp-Lite products, but in practice did not appreciate the build quality of their newer units. I did not feel that they improved the sound as much as they simply protected the audio equipment. Fair enough.
  As I recall, the Decware unit had some design aspects to it that I did not appreciate, though I have never owned one. Just to say that the front and back panel were not layed out in an easy to use manner. The voltage meter was on the back side? IIRC, There may have been changes to it since then, but best to take a look for yourself. Also, I recall it not being able to handle larger systems by itself.
 I really think that AC problems are as unique and common as the AC public AC system feeding them. True they have to live up to standards, yet environment age of public system and it's condition go along with possible problems unique to your experience.
  MC still has a good point about the phono pre being suspect here. My thinking here is that there is something amiss INSIDE your system, and not coming from the AC feed itself. That fun experimentation that we all abhor is inevitable.  Best of luck sir. 
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